100405135412 has 24 divisors (see below), whose sum is σ = 186879119616. Its totient is φ = 47037587328.

The previous prime is 100405135403. The next prime is 100405135423. The reversal of 100405135412 is 214531504001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3295478 + ... + 3325805.

It is an arithmetic number, because the mean of its divisors is an integer number (7786629984).

Almost surely, 2^100405135412 is an apocalyptic number.

It is an amenable number.

100405135412 is a deficient number, since it is larger than the sum of its proper divisors (86473984204).

100405135412 is a wasteful number, since it uses less digits than its factorization.

100405135412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6621527 (or 6621525 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 100405135412 its reverse (214531504001), we get a palindrome (314936639413).

The spelling of 100405135412 in words is "one hundred billion, four hundred five million, one hundred thirty-five thousand, four hundred twelve".